On the southwest side of San Francisco, near the city zoo and just inside city limits, is Fort Funston, part of the Golden Gate National Recreation Area, although locals often refer to the park as Doggie Disneyland. Just a short drive from downtown San Francisco, Fort Funston may not have it all, but it sure has a lot for people and dogs alike, and especially for dog people.
At Fort Funston, you can find sand dunes, beach access, and miles and miles of trails to suit all levels of experience and activity, from extremely steep sand stairs to well-paved, wheel-chair accessible paths. There's a hang glider launch point, which, as you might imagine, is placed on a high cliff with spectacular views. The launch pad is also favored by people with drones. There is no railing, so make sure to stay well away from the edge, especially when you have your four-legged buddy.
Closer to earth, you will find lots of space for your dog to play, including large sand dunes, miles and miles of trails, and plenty of beach to play on. However, if you do take your dog to the beach, be aware that the current and undertow are very strong and the water is quite cold. Swimming isn't recommended for anyone, whether on two legs or on four. Be aware that you may have to restrain your buddy for her safety.
At Fort Funston, you will find plenty of water fountains for your dog as well as lots of poop bags. You will also find lots of places to run and play, and lots of dogs to play with. You won't find a lot of facilities for people- bathrooms are limited to porta-potties in the parking lot, and water fountains at people height. You also won't find an entry fee. This Doggie Disneyland proves that the best things in life are free!